Electronics Forum: skewed (Page 1 of 25)

Skewing of parts

Electronics Forum | Fri Jul 23 09:31:52 EDT 2004 | cyber_wolf

Make sure that your mesh conveyor drive chain is not jumping a sprocket tooth. This will cause the conveyor to "pop" and you will have skewed parts. I seriously doubt that it is your profile causing skew. It is more than likely something mechanical.

Local fiducials

Electronics Forum | Wed Oct 20 11:15:23 EDT 2010 | jax

Circuit and Local Fiducials are all the same. The difference is the amount of "Stretch and Skew" that is accounted for. Local fiducials apply "Stretch and Skew" to a single placement or area of the circuit, depending on Equipment used. Circuit fiduci

Inductor Skew

Electronics Forum | Sat Jan 07 09:01:53 EST 2023 | venkataramanaiah

Hi, Have been observed the post reflow inductor skew which is weight of 3.50grams. Can we get any get the exact cause for skew and want to know how to check conveyor vibration.

Inductor Skew

Electronics Forum | Mon Jan 09 12:41:31 EST 2023 | proceng1

Magyart is on the right track. Lots of variables. Can you post a photo of the skewed part? But also, is it skewed in the paste before reflow? How many inductors are doing this per board? Lastly, indicate on the photo the direction of travel in the

How to identify any Vibration Source in Reflow Oven

Electronics Forum | Sat Feb 20 20:24:40 EST 2021 | sync40

Hello Ameen, It is needed a moderate impact bump to generate skew. Even blowing of the fans generally cannot generate serious skew -unless the pads apertures are not suitable for the components size/weight. You can try for yourself. Take a board wi

Skewed components

Electronics Forum | Wed Apr 25 16:35:55 EDT 2001 | Steve

Most of the time, we have very few skewed parts so I feel comfortable about the processes in general. However once in a while, often enough to throw off the first pass yield, we will get a few boards with a lot of skewed parts. By skewed I mean that

Skewed components

Electronics Forum | Tue Apr 24 12:56:39 EDT 2001 | Steve

We are experiencing a fair amount of skewed components, mostly 0805 resistors and capacitors, during the reflow process. We have pretty much ruled out the pick-n-place and have determined that it may be happening because of variables at the paste scr

Re: vibration during solder reflow

Electronics Forum | Sun May 23 10:14:14 EDT 1999 | M Cox

| Has anyone had any experience or data using vibration during the reflow process. | We introduced a vibration device attached to the fixed rail on a Vitronics reflow oven. The reason was to prevent skewing on large PLCC devices. The process worked v

Skewed transistors

Electronics Forum | Sun Apr 20 08:27:21 EDT 2003 | davef

Your link doesn�t work. It gives an application timed out message. Pads on the board that are too large or spaced improperly for the component usually cause skewing. Tombstoning and skewing are first cousins. Look here: http://www.smtinfocus.com

Skewed and popped components

Electronics Forum | Tue Sep 23 23:19:34 EDT 2003 | RLW

If you have a board that you've run several times, now you run it and like before all settings are the same, but now you have 0603's randomly skewed or an inch or so away from their intended pad (as if popped up in the air), or an occasional 7343 cap

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